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Radio Power, Ground, Serial Data, and Antenna Signals

WARNING: This page does not describe the selected car, but rather 8 other vehicles, including the 2011 GMC Yukon XL, 2011 GMC Yukon, 2011 Chevrolet Tahoe, 2011 Chevrolet Suburban, and 2011 Chevrolet Avalanche. However, it is still accessible from the selected car via links, so may be relevant.

Fig 1: Radio Power, Ground, Serial Data, and Antenna Signals Wiring Schematic

Courtesy of GENERAL MOTORS CORP.